Sponsored Content
Special Forums Hardware Filesystems, Disks and Memory PIPEs and Named PIPEs (FIFO) Buffer size Post 54386 by Jus on Thursday 12th of August 2004 05:44:36 AM
Old 08-12-2004
PIPEs and Named PIPEs (FIFO) Buffer size

Hello!
How I can increase or decrease predefined pipe buffer size?
System FreeBSD 4.9 and RedHat Linux 9.0

Thanks!
 

10 More Discussions You Might Find Interesting

1. Shell Programming and Scripting

named pipes

Hi I am having trouble with a script to export individual schemas to tape from an oracle database. Basicaly I need to export each shema through a pipe with compression and store each shema name in a file with the relevant tape marker. (4 Replies)
Discussion started by: truma1
4 Replies

2. Shell Programming and Scripting

FIFO named pipes

Hi...Can anyone please guide me on FIFO Pipes in UNIX.I have lerant things like creating fifo pipes,using them for reads and writes etc.I want to know what is the maximum amount of memory that such a pipe may have? Also can anyone guide me on where to get info on this topic from? (1 Reply)
Discussion started by: tej.buch
1 Replies

3. UNIX for Advanced & Expert Users

FIFO Pipes

Hi...Can anyone please guide me on FIFO Pipes in UNIX.I have lerant things like creating fifo pipes,using them for reads and writes etc.I want to know what is the maximum amount of memory that such a pipe may have? Also can anyone guide me on where to get info on this topic from? (4 Replies)
Discussion started by: tej.buch
4 Replies

4. UNIX for Advanced & Expert Users

tee into 2 named pipes

The following code does not work (zsh, Solaris), but works without the first line (files instead of pipes) :confused: mkfifo p1 p2 echo "Hello" | tee p1 > p2 & paste p1 p2 I would high appreciate any help to fix it. (9 Replies)
Discussion started by: zzol
9 Replies

5. Shell Programming and Scripting

named pipes

How to have a conversation between 2 processes using named pipes? (5 Replies)
Discussion started by: kanchan_agr
5 Replies

6. HP-UX

remove named pipes

Hi, Please help me on this. I am creating a named pipe in a kshell script. I am using mkfifo pipe_name command to create the pipe. I want to remove the named pipe after my work is completed. How can i do that. (8 Replies)
Discussion started by: chintapalli001
8 Replies

7. UNIX for Dummies Questions & Answers

Named Pipes

hi, i am working on a script for oracle export, m using a parameter file... i want to compress the dump file that is generated.. in my script following is the code i have written. i am not able to generata .gz file mknod /tmp/exp_tesd1_pipe p gzip -cNf... (4 Replies)
Discussion started by: saharookiedba
4 Replies

8. Shell Programming and Scripting

Temporary named pipes in Hpux Kornshell

Tried the following on Hpux 11.11, using both ksh, and dtksh $diff <(sort file1) <(sort file2) $ ksh: syntax error: `(' unexpected Strange thing is I tried the same command under RHEL5 using ksh 93 and it works fine. Does anyone know if this is possible on HPUX without the use of... (0 Replies)
Discussion started by: fire!
0 Replies

9. UNIX for Advanced & Expert Users

Named pipes using MKS Toolkit

I'm not sure whether or not this question really belongs in this forum and will accept rebuke should I have mistakenly put it in the wrong place (hopefully the rebuke will be accompanied by an answer, though) I wish to implement named pipe communication between two process using MKS Toolkit. I... (2 Replies)
Discussion started by: ArndW
2 Replies

10. Shell Programming and Scripting

Dialog with an external program using named pipes

Dear community, I communicate with an external program (maxima) using named pipes. If I use a text file to capture the output (maxima > out.txt) i can see the programs answer directly after the input written into the file. But if bypass the output into a named pipe (maxima > pipe) and capture it... (1 Reply)
Discussion started by: Pustekuchen
1 Replies
ulimit(2)							System Calls Manual							 ulimit(2)

NAME
ulimit() - get and set user limits SYNOPSIS
Remarks The ANSI C "" construct denotes a variable length argument list whose optional [or required] members are given in the associated comment DESCRIPTION
provides for control over process limits. Available values for cmd are: Get the file size limit of the process. The limit is in units of 512-byte blocks and is inherited by child processes. Files of any size can be read. The optional second argument is not used. Set the file size limit of the process to the value of the optional second argument which is taken as a long. Any process can decrease this limit, but only a process with the privilege can increase the limit. Note that the limit must be specified in units of 512-byte blocks. Get the maximum possible break value (see brk(2)). Depending on system resources such as swap space, this maximum might not be attainable at a given time. The optional second argument is not used. Security Restrictions Some or all of the actions associated with this system call require the privilege. Processes owned by the superuser have this privilege. Processes owned by other users may have this privilege, depending on system configuration. See privileges(5) for more information about privileged access on systems that support fine-grained privileges. RETURN VALUE
Upon successful completion, a non-negative value is returned. Errors return a -1, with set to indicate the error. ERRORS
fails if one or more of the following conditions is true. cmd is not in the correct range. fails and the limit is unchanged if a process without the privilege attempts to increase its file size limit. SEE ALSO
brk(2), write(2), privileges(5). STANDARDS CONFORMANCE
ulimit(2)
All times are GMT -4. The time now is 05:55 PM.
Unix & Linux Forums Content Copyright 1993-2022. All Rights Reserved.
Privacy Policy